Clavius, Christoph, Geometria practica
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          <head xml:id="echoid-head8" xml:space="preserve">INDEX
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          CAPITVM, PROBLE-
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          MATVM, AC PROPOSITIONVM
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          HORVM VIII. LIBRORVM.</head>
          <head xml:id="echoid-head9" xml:space="preserve">PRIMI LIBRI CAPITA.</head>
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          I.
            <emph style="sc">Instrvmenti</emph>
          partium conſtructio, atque vſus multiplex. # 4. vſ{q́ue} ad 14
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          II. Conſtructio Qu@adrantis, in quo Minuta quoque ac Secunda deprehendantur,
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          e
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          tiamſi gradus in ea ſecti non ſint. Et quo pacto eadens Min. & Sec. obtineri poſſint in
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          Quadrante in 90. gradus diſtributo. Ac deni qua ratione ex data recta in pauciſſimas
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          part{es} æqual{es} diuiſa abſcindi poſſint part{es} m@lleſimæ, & c. # 14. vſ ad 44
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          III. Problemata varia triangulorum rectilineorum. # 44. vſque ad 50
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          <head xml:id="echoid-head10" xml:space="preserve">SECVNDI LIBRI PROBLEMATA.</head>
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          I.
            <emph style="sc">Distantiam</emph>
          in plano, ſiue acceſſibilis ea ſit, ſiue inacceſſibilis, per du{as} ſta-
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          tion{es} in eodem plano factas, per quadrantem metiri, quando in ei{us} extremo erecta est
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          alitudo aliqua perpendicularis, etiamſi infimum @i{us} extre@um non cernatur. Atque
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          hinc altitudinem quoque ipſam elicere. # 51
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            <emph style="sc">Lemma.</emph>
          Datis duabus rectis ad inuicem inclinatis, punctum, in quo con-
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          ueniant, inuenire. # 55
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          II. Altitudinem inacceſſibilem, quando diſtantia à loco menſoris ad baſem altitu-
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          dinis ignota eſt, per du{as} ſtation{es} in plano fact{as}, per quadrantem dimetiri. Atque hinc
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          diſtantiam quoque ipſam eruere, {et}iamſi extrem{us} ei{us} termin{us} non cernatur. # 57
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          III. Ex vertice montis, aut turris, in cui{us} ſummitate duæ ſtation{es} fieri poſſint,
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          èquib{us} ſignum aliquod in Horizonte æppareat, altitudinem ipſi{us} montis turriſue di-
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          m{et}iri. Atque hinc ipſam quoque diſtantiam à turris baſi, vel perpendiculo mo
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          ntis ad
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          ſignum illud inueſtigare. # 59
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          IV. Ex vertice montis, vel turris, per du{as} ſtation{es} in aliqua haſtaerecta, velin
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          duab{us} feneſtris turris, quarum vna ſupra aliam exiſtat, fact{as}, è quib{us} ſignum ali-
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          quod in Horizonte videri poſſit, altitudinem ipſi{us} montis, aut turris per quadrantem.
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          m{et}@ri. At{q́ue} hinc diſtantiam quoque a perpendiculo montis, velturris, vſque ad ſignum
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          viſum cognoſcere. # 62
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          V. Ex vertice montis, aut turris, altitudinem ipſi{us}, ſi in plano, cui inſiſtit, ſpatium.
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          aliquodè directo menſoris notum ſit, per quadr antem deprehendere. # 64
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          VI. Diſtantiam ab oculo, vel pede menſoris ad quoduis punctum in aliqua altitu-
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          dine notatum, per du{as} ſtation{es} in plano fact{as}, per quadrantem metiri. # 65
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          VII. Interuallum inter duo puncta in quolibet plano eleuato, ſiue illud ad Horizon-
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          tem rectum ſit, ſiue inclinatum, per quadrantem metiri. # </note>
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